Correct answer: (b) Alamgirpur
Explanation
- A
Harappa
Harappa claims the famous early site discovered in Punjab on the Ravi river, but it lies in the northwestern heartland rather than marking any outer boundary.
- B
Alamgirpur
Alamgirpur claims the Harappan site located on the Hindon river in Uttar Pradesh, which historically marks the easternmost known boundary of the Indus Valley Civilization. This option provides the correct archaeological extent among the given choices.
- C
Rakhigarhi
Rakhigarhi claims the largest Indian Harappan site situated in Haryana, which serves as a major urban center in the core region instead of the eastern extremity.
- D
Manda
Manda claims the northernmost Harappan site located in Jammu and Kashmir on the Chenab river, representing the northern limit rather than the eastern boundary.
Summary. Official key is (b) Alamgirpur. The geographical extent of the Harappan civilization spans across four cardinal limits: Alamgirpur in the east, Manda in the north, Sutkagendor in the west, and Daimabad in the south. Students often confuse regional center sizes with directional boundaries, mixing up Rakhigarhi with territorial edges. Alamgirpur correctly identifies the easternmost extent along the Hindon river in Uttar Pradesh.